Personally, I can't even take recreational drugs because I usually can't get them. But, if I did you a recreational drug to treat something - it would be MDMA. I've been trying to replicate it's effects ever since I tried it to no avail.
I have bad PTSD and MDMA just got rid of all of it.....I actually felt like a person when I tried it. If I could get MDMA medicinally prescribed OR verify 100% that it had no PMA/Methylone/Meth/Mephedrone etc in it - I'd take it everyday. But, MDMA is going away and being replaced by shitty RC's

I wish I had been born in the late 70's or early 80's. Stocked up on legit MDMA and then comeback to the future.
Now that I think about it, there's nothing stopping me from making it myself. But I risk criminal prosecution if I do that......plus, all the precursors and controlled.
Anyways, I took my Vyvanse this morning, but I wanted to try to replicate the MDMA effects again so I added in 90MG's of DXM, 600MG's of St. John's Wort and 10MG's of Melatonin. This combination is nowhere near as powerful as MDMA, but I do feel empathogenic at the moment. Normally I feel wired and irritable when I take my Vyvanse. Today (with this combination) I feel.....not speedy at all. But I don't feel tired either. I don't have nerve pain like I usually do and I'm having almost no anxiety (which Vyvanse usually causes).
MDMA was like....I felt really wired and speedy, but very empathogenic. Everybody was my friend, I didn't give a shit how I looked, music sounded incredible. I kind of have this now, but without the speedyness and not as powerful of an empathogenic effect.
This is an interesting mix.